#include "TFTControl.h"

//要先用触摸屏
static const uint16_t screenWidth  = 480;
static const uint16_t screenHeight = 320;
//触摸屏
TAMC_GT911 tp = TAMC_GT911(TOUCH_SDA, TOUCH_SCL, TOUCH_INT, TOUCH_RST, screenWidth, screenHeight);

//lvgl
static lv_disp_draw_buf_t draw_buf;
static lv_color_t buf[ screenWidth * screenHeight / 10 ];
//显示屏
TFT_eSPI tft = TFT_eSPI(screenWidth, screenHeight); /* TFT instance */

/* Display flushing */
void my_disp_flush( lv_disp_drv_t *disp_drv, const lv_area_t *area, lv_color_t *color_p )
{
    uint32_t w = ( area->x2 - area->x1 + 1 );
    uint32_t h = ( area->y2 - area->y1 + 1 );

    tft.startWrite();
    tft.setAddrWindow( area->x1, area->y1, w, h );
    tft.pushColors( ( uint16_t * )&color_p->full, w * h, true );
    tft.endWrite();

    lv_disp_flush_ready( disp_drv );
}

/*Read the touchpad*/
void my_touchpad_read( lv_indev_drv_t * indev_drv, lv_indev_data_t * data )
{
    //获取触摸的数据
    tp.read();
    //如果用户触摸了屏幕
    if (tp.isTouched){
        data->state = LV_INDEV_STATE_PR;
        for (int i=0; i<tp.touches; i++){
            data->point.x = tp.points[i].x;
            data->point.y = tp.points[i].y;
        }
    }
    else
    {
        data->state = LV_INDEV_STATE_REL;
    }
}

void screen_init(void){
//初始化触摸屏
    tp.begin();
    tp.setRotation(ROTATION_LEFT);
    
    String LVGL_Arduino = "Hello Arduino! ";
    LVGL_Arduino += String('V') + lv_version_major() + "." + lv_version_minor() + "." + lv_version_patch();


    lv_init();
    //初始化显示屏
    tft.begin();          /* TFT init */
    tft.setRotation( 3 );

    uint16_t calData[5] = { 275, 3620, 264, 3532, 1 };
    //tft.setTouch( calData );

    lv_disp_draw_buf_init( &draw_buf, buf, NULL, screenWidth * screenHeight / 10 );

    /*Initialize the display*/
    static lv_disp_drv_t disp_drv;
    lv_disp_drv_init( &disp_drv );
    /*Change the following line to your display resolution*/
    disp_drv.hor_res = screenWidth;
    disp_drv.ver_res = screenHeight;
    disp_drv.flush_cb = my_disp_flush;//调用显示的函数
    disp_drv.draw_buf = &draw_buf;
    lv_disp_drv_register( &disp_drv );

    /*Initialize the (dummy) input device driver*/
    static lv_indev_drv_t indev_drv;
    lv_indev_drv_init( &indev_drv );
    indev_drv.type = LV_INDEV_TYPE_POINTER;
    indev_drv.read_cb = my_touchpad_read;//调用触摸的函数 
    lv_indev_drv_register( &indev_drv );
}
void screen_loop(void){
    lv_timer_handler();
}